Tannaka-Krein duality for compact matrix pseudogroups. TwistedSU(N) groups
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- Woronowicz, S.L. Invent Math (1988) 93: 35. doi:10.1007/BF01393687
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The notion of concrete monoidalW*-category is introduced and investigated. A generalization of the Tannaka-Krein duality theorem is proved. It leads to new examples of compact matrix pseudogroups. Among them we have twistedSU(N) groups denoted bySμU(N). It is shown that the representation theory forSμU(N) is similar to that ofSU(N): irreducible representations are labeled by Young diagrams and formulae for dimensions and multiplicity are the same as in the classical case.